Submission #227375

#	Time	Username	Problem	Language	Result	Execution time	Memory
227375		Nayna	Art Exhibition (JOI18_art)	C++14	100 / 100	818 ms	24952 KiB

art

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int mxn = 5e5+5;
typedef pair<ll,ll>pii;

pii arr[mxn];
ll pre[mxn];

int main()
{
    ll n;
    cin >> n;

    for(int i = 1; i <= n; i++)
    {
        cin >> arr[i].first >> arr[i].second;
    }
    sort(arr+1, arr+n+1);
    for(int i = 1; i <= n; i++) pre[i] = pre[i-1]+arr[i].second;
    ll ans = -4e18, mn = 4e18;
    for(int i = 1; i <= n; i++)
    {
        ll x = pre[i-1]-arr[i].first;
        mn = min(x, mn);
        ll y = pre[i]-arr[i].first;
        ans = max(ans, y-mn);
    }
    cout << ans << '\n';
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50